Auxiliary device for heat treatment of special-shaped driven gear and heat treatment method thereof

The invention discloses an auxiliary device for heat treatment of a special-shaped driven gear. The special-shaped driven gear comprises a gear core part and a tooth part annularly distributed on the upper surface of the gear core part, and a mounting neck part is arranged on the lower surface of the core part in an extending manner; the auxiliary device is an annular base plate which is arranged on the mounting neck in a sleeving mode, a center hole is formed in the annular base plate, and an inner groove body is formed in the side, close to the gear core, of the annular base plate so that circulation of quenching liquid can be facilitated. According to the process method, the carburizing and quenching tool and the process are combined, the deformation, the internal structure and the flatness of the special-shaped driven gear subjected to heat treatment all meet the use requirements, and a product produced through the process method is high in stability and beneficial to application and popularization. 本发明公开