Experimental study on load sharing characteristics of fixed axis tri-branching gear transmission system

YAN Hai; Yang Sheng; WEN LiHua; Meng Fanming; Cao Hao

doi:10.11993/j.issn.2096-3920.2025-0085

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YAN Hai, Yang Sheng, WEN LiHua, Meng Fanming, Cao Hao. Experimental study on load sharing characteristics of fixed axis tri-branching gear transmission system[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2025-0085

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YAN Hai, Yang Sheng, WEN LiHua, Meng Fanming, Cao Hao. Experimental study on load sharing characteristics of fixed axis tri-branching gear transmission system[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2025-0085

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Experimental study on load sharing characteristics of fixed axis tri-branching gear transmission system

doi: 10.11993/j.issn.2096-3920.2025-0085

YAN Hai^{1, 2
,},
Yang Sheng³,
WEN LiHua¹,
Meng Fanming³,
Cao Hao^{1, 2}

1.
School of Astronautics, Northwestern Polytechnical University, Xi’an 710077, China
2.
The 705 Research Institute, China Shipbuilding Instudy Corporation Limited, Xi’an 710077, China
3.
The State Key Laboratory of Mechanical Transmission for Advanced Equipment, Chongqing University, Chongqing 400044, China

Received Date: 2025-07-05
Accepted Date: 2025-08-18
Rev Recd Date: 2025-08-05

Available Online: 2025-12-01

Abstract

Abstract

In view of the fact that the current load sharing characteristics test of gear transmission system does not consider the influence of processing and installation errors such as backlash and shaft eccentricity angle on load sharing characteristics, a gear transmission system load sharing characteristic test bench was built for a fixed axis power tri-branching gear transmission system. The backlash was adjusted by adding a thin gasket at the bearing seat, and the shaft eccentricity angle was adjusted by designing the eccentric sleeve structure. The tooth root stress of the sun gears of the split and combiner stages was tested under different operating conditions, and the influence of temperature on stress was eliminated through temperature compensation strain gauges. The variation trend of the gear load sharing characteristics with load, tooth clearance, and shaft eccentricity angle was studied. The results indicate that the load sharing characteristics of the combiner stage are superior to those of the split stage; the larger the load, the better the two-stage load sharing characteristics; the eccentricity angle of the shaft has a significant impact on the load sharing characteristics of gear transmission system.
- three-branch gear transmission system,
- load sharing characteristics,
- load,
- backlash,
- shaft eccentric angle

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References(24)

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