Performance Of Double Circular Planetary Gear Train Of High-speed Heavy

High-speed and heavy-duty is an important development direction of the mechanicaltransmission,modern machines are also increasingly toward the development direction ofhigh-speed, heavy-duty and compact. The paper combines the advantage of the doublecircular arc gear and planetary transmission in high-speed heavy duty, using the method ofcombining the theoretical analysis with the finite element simulation,it mainly researchsthe carrying capacity of the double circular arc gear planetary transmission system, themain content includes:The paper introduced the basic theory of the double circular arc gear, the maincontents included the basic profile of the double circular arc gear, profile parameters andgeometric parameters, the forming principle of tooth and tooth surface equation and thedrive the basic principle and meshing characteristics.The paper analyzed the carrying capacity of high-speed and heavy-duty doublecircular arc gear planetary gear train theoretically, with the involute gear tooth rootbending strength calculation as the foundation, calculated the double circular arc geartooth root bending strength using the discount section analysis method; on the basis of thetheory of Hertz, using the elastic contact theory analysed the tooth surface contact strengthof the double circular arc gear, it deduced tooth contact stress calculation formula; baseson the thought of finite element,it analysed the temperature field of the tooth,andcalculated the thermal deformation of the tooth on the basis of the temperature field.Using Pro/E established the relationship between the geometric parameters and thebasic parameters,it realized the parametric design of the double circular arc gearparametric, and did the simple assembly of the planetary transmission system, laid thefoundation for kinematics simulation and ANSYS analysis in further research.The paper simulated and analyzed the bearing capacity of the double circular arc gearusing ANSYS, it focused on the simulation analysis of the tooth root bending strength andthe change rule in the different parameters; it established the gear pair contact model, simulated and analyzed the gear tooth contact strength in three tooth contact model; itsimplified the temperature field simulation analysis, the friction heat transfer rate wascalculated, basing on this it was concluded that the temperature field distribution rule, andfurther simulated and analyzesd the thermal deformation of the tooth.