Influence of offset distance and machining error on face gear transmission error
                                          LIN Jiachun1，JI Xinyan1，SHI Zhaoyao1，YU Bo1，ZHANG Bai2
(1.College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China; 2 .College of Electrical and Information Engineering, Northern Nationalities University, Yinchuan 750021, China)

Abstract: Aiming at the problem of accurately measuring the transmission error of the face gear and reducing the influence of the face gear installation error on the measurement result during the measurement process, the orthogonal face gear mathematical model with both offset distance and machining error was established. The TCA analysis method was adopted. The influence of offset distance on the transmission error and contact trajectory of orthogonal face gear with machining error was studied. The maximum offset range was determined. The measurement experiment of the face gear transmission error under different offset distances was carried out, and a series of transmission error measurement curves and tangential comprehensive deviation of one tooth of face gear were obtained. The results indicate that when the face gear is shifted upward in the axial direction, it has little effect on the transmission error. When the face gear is shifted downward in the axial direction, tangential comprehensive deviation of one tooth of face gear is increased by 8.086 μm. When the face gear is biased to the left and right of the pinion gear, there is no significant influence on the transmission error, and tangential comprehensive deviation of one tooth of face gear is within 1 μm. This result has guiding significance on how to reduce the influence of installation error on the measurement results of face gear transmission error.

Key words: offset distance; face gear ;TCA analysis ;transmission error