Review on Repair Technologies for Key Part Remanufacturing of Shield Machines

doi:10.3969/j.issn.1004-132X.2021.07.009

Abstract

Abstract: The development situation of shield machine remanufacturing in China was expounded, and the development shortages and challenges were pointed out. The damage forms and the repair methods of key parts of shield machines, such as main bearing, cutter and cutter head, hydraulic system, reducer, screw conveyer were summarized. The potential and advantages of additive repairing technologies such as laser cladding, thermal spraying, cold spraying and cold welding in shield machine remanufacturing were analyzed. The future development trends of shield machine remanufacturing were finally provided.

Key words: , shield machine, remanufacturing, laser cladding, additive repairing, wear resistance

摘要： 阐述了我国盾构机再制造的发展现状并指出了我国盾构机再制造发展的不足与挑战，综述了盾构机主轴承、刀具刀盘、液压系统、减速机、螺旋输送机等关键部件的损伤形式及目前常用的再制造修复方法。分析了激光熔覆、热喷涂、冷喷涂、冷焊等增材修复技术在盾构机再制造方面的潜能和优势，最后展望了盾构机再制造的发展趋势。

关键词: 盾构机, 再制造, 激光熔覆, 增材修复, 耐磨性

CLC Number:

TH16

LI Fangyi, QI Xiaoxia, LI Yanle, WANG Liming, DU Jiyu, XU Jingwei, MENG Xiaoning. Review on Repair Technologies for Key Part Remanufacturing of Shield Machines[J]. China Mechanical Engineering, 2021, 32(07): 820-831.

李方义, 戚小霞, 李燕乐, 王黎明, 杜际雨, 许京伟, 孟晓宁. 盾构机关键零部件再制造修复技术综述[J]. 中国机械工程, 2021, 32(07): 820-831.

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