Patent ID: 6278903
Filing Date: 2001-08-21
Classification: B08B,B25J,B62D,F28G,Y10S

Abstract:
A working robot for heat exchangers comprising:a robot body movable along a tube sheet through which a number of narrow tubes open,at least four combined-use arms mounted on an outer periphery of said robot body for extension and retraction toward and away from the outer periphery along said tube sheet, anda working device installed at a front end of each of said combined-use arms,said working device being provided witha cleaning means consisting essentially of a cleaning tool inserting mechanism for inserting a cleaning tool into a narrow tube and a pressure-feed mechanism for moving said cleaning tool in and along a narrow tube by pressurized fluid, anda positioning mechanism for inserting a connecting and fixing tool into a narrow tube to fix said combined-used arm to the narrow tube to position the robot body,said robot including a movement mechanism for moving the robot body by extending and retracting the combined-use arms fixed by said positioning mechanism.