US 12,467,575 B2
Flexible adaptive large length to thin ratio pipeline intelligent repair device and use method
Timing Zhang, Nanchang (CN); Yuhua Chen, Nanchang (CN); Jiaxing Guo, Nanchang (CN); Shiyi Zhang, Nanchang (CN); Shanlin Wang, Nanchang (CN); Jilin Xie, Nanchang (CN); Limeng Yin, Nanchang (CN); Yanlin Jia, Nanchang (CN); and Zhikang Ye, Nanchang (CN)
Assigned to Nanchang Hangkong University, Nanchang (CN)
Filed by Nanchang Hangkong University, Nanchang (CN)
Filed on Apr. 12, 2023, as Appl. No. 18/133,533.
Claims priority of application No. 202210967266.8 (CN), filed on Aug. 12, 2022.
Prior Publication US 2024/0052964 A1, Feb. 15, 2024
Int. Cl. F16L 55/44 (2006.01); F16L 55/18 (2006.01)
CPC F16L 55/44 (2013.01) [F16L 55/18 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A flexible adaptive large length-to-thin ratio pipeline intelligent repair device, comprising groups of walking mechanisms, each group of walking mechanisms comprises a walking bracket and a radius adjustment assembly; the radius adjustment assembly is located in a middle of the walking bracket, and a first motor is provided in a middle of the walking mechanism for driving the radius adjustment assembly; the walking bracket is provided with a second motor for driving a movement of the walking bracket; the walking bracket is detachably connected to first connecting rods, and ends of the first connecting rods are detachably connected to a working part, and the working part comprises a pre-weld sand blasting mechanism or a heating mechanism or a welding repair mechanism; the walking bracket is provided with a positioning sensor; two adjacent groups of walking mechanisms are connected to each other by a universal joint connected;
the pre-weld sand blasting mechanism comprises a sand blasting head, a first rotating arm for controlling a rotation of the sand blasting head, a third motor for providing power to the first rotating arm, a first sand storage tank for supplying sand to the sand blasting head, and a compressed air tank for providing power to a sand blasting work of the sand blasting head;
the heating mechanism comprises a heating frame and a fourth motor for driving a rotation of the heating frame, wherein the fourth motor is rotatably connected to the first connecting rods;
the welding repair mechanism comprises a welding gun, a fifth motor for adjusting an angle of the welding gun, a second rotating arm for controlling a rotation of the welding gun, and a sixth motor for providing power to the second rotating arm.