Method for repairing gear of gear ring of main bearing of shield tunneling machine
The invention belongs to the technical field of shield tunneling machines, and discloses a shield tunneling machine main bearing gear ring gear repairing method which comprises the following steps that a damaged gear is polished to be in smooth transition, cracks on the surface of the gear are detec...
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Main Authors | , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
04.06.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The invention belongs to the technical field of shield tunneling machines, and discloses a shield tunneling machine main bearing gear ring gear repairing method which comprises the following steps that a damaged gear is polished to be in smooth transition, cracks on the surface of the gear are detected and eliminated, and the polished face of a to-be-repaired gear is cleaned; the gear to be repaired is preheated, and meanwhile, the gear outside the preheating range is subjected to heat insulation protection; a welding rod is dried before welding, grinding is conducted after welding of a filling layer is completed, then surface layer welding is conducted, and welding stress is eliminated through a hammering method in the welding process; after welding, the gear to be repaired is subjected to post-heating treatment, then a weld joint is covered with heat preservation cotton, and the gear is cooled to the room temperature; the weld reinforcement is polished, and then nondestructive testing is conducted; and fine |
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Bibliography: | Application Number: CN202410161372 |