Mathematical modeling and characteristics analysis for the nutation gear drive based on error parameters |
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| Authors: | JI Wen-tao YAO Li-gang and ZHANG Jun |
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| Institution: | School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, P. R. China,School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, P. R. China and School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, P. R. China |
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| Abstract: | We focused on the mathematical modeling and characteristics analysis for the nutation drive based on error parameters. The crown gear tooth profile equation was introduced according to the national standard double circular arc tooth profile and based on the equal tooth strength principle. The nutation drive meshing coordinate system was set up by introducing the cone vertex error, tilt error, nutation angle error and spiral angle error. The tooth profile equations of the double circular arc external and internal spiral bevel gears were further obtained based on the crown gear tooth profile equation concerning above mentioned error parameters. The influences of the nutation gear reducer tooth contact conditions were analyzed with the gear tilt error and axial misalignment error. Finally, the correctness of the theoretical analysis was verified by the contact spot test. |
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| Keywords: | nutation drive double circular arc spiral bevel gear internal bevel gear error analysis |
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