Research on the Design and Manufacturing of Internal Gears with Multi Tooth Meshing
This article proposes a design and manufacturing method for internal meshing gears,the contact areas of the gears are located at the tooth tip above the pitch circle,the number of teeth in contact at the same time can reach 7 or more.Based on differential geometry and gear meshing principles,the equation for the tooth profile curves of the internal meshing gears are established;Based on Archimedes'theory of helical surfaces,a design method for external gear rolling cutters been established;Based on the principle of generating machining,a design method for internal gear hobbing cutters been established;Simulations were conducted on gear rolling and gear hobbing to verify the correctness of tool design and machining methods;Furthermore,the cutters and gear samples were manufactured;By comparing the theoretical tooth profile with the sample tooth profile obtained through measurement,the correctness and machinability of the gear were verified,laying a theoretical foundation for the engineering application.
Multi tooth contactInternal meshing gearsTool designGear machining
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