Repairing method of inside of pipe and device therefor

Abstract

Abstract PURPOSE:To improve operation efficiency in making repairing of the inside of a pipe, by making control of a posture of a grinder movable in a three-dimentional state provided on a running body by operating it from the outside of the pipe while monitoring a monitor. CONSTITUTION:A repairing device 1 is inserted into a pipe P, which has been passed through an inspection process already and applied a paint mark to a place having a flaw, and a grinder 24 is controlled through a power reversing type bilateral servosystem by operating a handle 2a of a operation board 2 while monitoring a position of the paint mark by a monitor television 3 provided outside the pipe. This repairing device 1 is run by provdiding a grinder 24 on the front edge part of a cylinder body 11, which becomes a running body, through an arm 21, a gear box 22 and a supporting fork 23 and revolving a rear wheel 15 by a driving part for running in the cylinder body 11, and a position of the grinder 24 is controlled by a posture controlling part and its driving part according to an operation of the handle 2a in a three-dimentional state, such as an axial, a radiusward and a circumferential directions. A repairing operation is made effective and a finishing state is made favourable by doing in this manner.

Inventors

• 👤 Yasuyuki Furukawa
• 👤 古川　恭之
• 👤 Yutaka Katayama
• 👤 片山　裕
• 👤 Hideo Kikuchi
• 👤 日出男 菊池
• 👤 Toshio Tanahashi
• 👤 棚橋　利夫

Bibliographic Details