Gear ring and gear hub fixing structure and expansion sleeve type riveting device

The utility model relates to the field of riveting devices, in particular to a fixing structure of a gear ring and a gear hub and an expansion sleeve type riveting device of the fixing structure. The gear comprises a gear ring and a gear hub nested on the inner side of the upper end of the gear ring, a nesting ring nested with the outer circle of the gear hub is arranged at the upper end of the gear ring, an annular groove is formed in the root of the inner side of the nesting ring, and at least one hole groove is formed in the outer circle of the gear hub. A deformation part which can be extruded into the annular groove after protruding deformation and enables the gear ring and the gear hub to be relatively fixed in the axial direction is formed on the lower side of the hole groove. The fixture has the advantages that the gear hub and the gear ring can be quickly and conveniently fixed, and the fixture can be used for riveting gear rings with different widths. 本实用新型涉及铆接装置领域，具体涉及一种齿圈与齿毂的固定结构及其涨套式铆接装置。其包括齿圈与嵌套