Disassembly-free repairing device for large gear through friction welding

Abstract

The invention discloses a disassembly-free repairing device for a large gear through friction welding. The device comprises a casting box, a first working cavity with a rightward opening is formed in the casting box, and a second working cavity with an upward opening is formed in the inner wall of the lower side of the first working cavity. A first reserved cavity with a forward opening is formed in the inner wall of the rear side of the first working cavity, and a first electric sliding rail with a rightward opening is arranged on the inner wall of the left side of the first working cavity. The device is aimed at repairing the broken gear of the large gear. The device takes a model from the gear which is intact and uses wax to make the model. The repairing gear is cast through a lost wax method, the repairing gear can be accurately cast through film sleeving and lost wax method casting, the repairing precision is much higher than that of manual repairing, after casting is completed, the repairing gear is welded to the gear in a friction welding mode, the hardness of the repairing gear can be guaranteed through friction welding, the durability of the repairing gear is improved, and the repair rate is reduced.

Description

technical field [0001] The invention relates to the field of gears, in particular to a device for repairing large gears without dismantling through friction welding. Background technique [0002] The hard-toothed gear is a kind of wearing part. Due to the huge torque during operation, the surface of the hard-toothed gear will wear out as the working time progresses, and even cause mechanical damage, resulting in large economic losses. If it is replaced New gears may waste resources and costs. At present, manual welding and mold repair methods are used. The hardness of the teeth repaired by this method is poor, and the meshing degree is greatly affected by the construction personnel's technology, and it is easy to be damaged again. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a device for repairing large gears without dismantling through friction welding, so as to overcome the above-mentioned situation. [000...

AI Technical Summary

Problems solved by technology

[0002] The hard-toothed gear is a kind of wearing part. Due to the huge torque during operation, the surface of the hard-toothed gear will wear out as the working time progresses, and even cause mechanical damage, resulting in large economic losses. If it is replaced New gears may waste resources and costs. At present, manual welding is used to repair molds. The tooth hardness after repairing this method is poor, and the meshing degree is greatly affected by the construction personnel's technology, and it is easy to be damaged again.

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