Internal gear honing is a process of precise machining of the gear

in the process

there exists trace amounts of interference between tooth surfaces as helical internal honing wheel and spur gear are a gear pair with crossed shaft

a crown teeth can be obtained by removing the interference amount

and the crown teeth brings great benefit for reducing noise and enhancing the stability of transmission of the gear.Because the meshing of a crossed shaft gear pair is very complex

the analytical calculation of the quantity of interference between teeth is also difficult to be achieved.By using a 3-D modeling software UG/NX

the parameter of the cylindrical internal helical gear and the spur gear modeling and assembly simulation is realized

through the simulation of gear meshing movement

interference is successfully removed to process the crown teeth

and finally data of interference for a single tooth is obtained.