Impact of radial modification coefficient of bevel gear on the load-bearing characteristics of differential
ObjectiveAiming at the issues of strength balance and load-bearing characteristics of the bevel gear pair in the differential of medium and large-sized sedans, a new approach to improve the load-bearing characteristics of differential gears is proposed.MethodsFirstly, with the radial modification co...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2025-01-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails?columnId=123150687&Fpath=home&index=0 |
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| Summary: | ObjectiveAiming at the issues of strength balance and load-bearing characteristics of the bevel gear pair in the differential of medium and large-sized sedans, a new approach to improve the load-bearing characteristics of differential gears is proposed.MethodsFirstly, with the radial modification coefficient x as the independent variable, separate configurations of positive and negative radial modifications are created for the planet gear and side gear. Secondly, taking the torque applied to the side gear as the independent variable, three types of torque are imposed on the boundary conditions of the planet gear and side gear models with different radial modification coefficients. Finally, non-linear contact analysis elements are employed to conduct contact and mechanical performance analyses and solve for the stress distribution of the gears.ResultsThe results indicate that the maximum stress position of the bevel gears during meshing occurs at the gear roots. Under different torque loadings, as the radial modification coefficient x1 of the planet gear increases from 0.1 to 0.2, the maximum stress at the tooth root decreases, while the average stress along the meshing line increases. When the radial modification coefficient x2 of the side gear decreases from -0.1 to -0.2, the maximum stress at the tooth root of the gear increases, and so does the average stress along the meshing line. The modal analysis results of the planet gear and side gear in the differential show that as the positive and negative modification coefficients increase, the maximum natural frequency and maximum spatial displacement of both the side gear and planet gear gradually increase. |
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| ISSN: | 1004-2539 |