Bibliographic Details
| Title: |
Optimal Initial Backlash Threshold Design of Spiral Bevel Gear Pair under Dry Running State. |
| Authors: |
Li, Fei1 (AUTHOR) 328202067@qq.com, Wang, Sanmin2 (AUTHOR), Wang, Lijun1 (AUTHOR), Wang, Shifeng1 (AUTHOR), Li, Lijian1 (AUTHOR), Li, Bing1 (AUTHOR), Ma, Xiao1 (AUTHOR), Liu, Dong1 (AUTHOR) |
| Source: |
Tribology Transactions. Nov/Dec2025, Vol. 68 Issue 6, p1233-1246. 14p. |
| Subjects: |
Bevel gearing, Backlash (Engineering), Mechanical vibration research, Fretting corrosion, Elastic deformation, Mechanical wear, Thermal expansion |
| Abstract: |
An optimal initial backlash threshold calculation model considering thermal deformation, elastic deformation, and wear at the meshing point of spiral bevel gears under dry operation is proposed in this article. First, the thermal deformation and elastic deformation of spiral bevel gear pair are calculated based on the transient temperature field analysis of spiral bevel gear pair under dry running state, the principle of thermoelastic mechanics, and Hertz contact theory. Then the wear coefficient of the spiral bevel gear pair is determined by the friction and wear characteristic test. According to the Archard wear model and the tooth loading contact analysis, the wear depth of the spiral bevel gear pair under the dry running state is obtained, so as to determine the best initial backlash threshold to ensure that the spiral bevel gear pair has a dry running ability of 30 min. Finally, the correctness and effectiveness of the time-varying backlash calculation model are verified by example analysis and experiment. The results show that the dry running ability of the spiral bevel gear transmission system for 30 min can be satisfied when the initial backlash threshold of the spiral bevel gear pair is [0.44,0.46] mm, and the maximum vibration speed and maximum vibration acceleration of the transmission system within this backlash range are in line with the aero-engine design specifications. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
