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On-line Access: 2024-04-16

Received: 2023-08-23

Revision Accepted: 2023-12-05

Crosschecked: 2024-04-16

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Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Yi LIU

https://orcid.org/0009-0007-6962-5745

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Article info.

Journal of Zhejiang University SCIENCE A 2024 Vol.25 No.4 P.324-339

http://doi.org/10.1631/jzus.A2300436


Influence of vibration on the lubrication effect of a splash-lubricated gearbox


Author(s):  Yi LIU, Kailin ZHANG, Shuai SHAO, Hongxu XIANG, Zhijian YE

Affiliation(s):  State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, China

Corresponding email(s):   kailinzhang_swjtu@126.comswjtushaoshuai@163.com

Key Words:  Comprehensive lubrication evaluation, Churning loss, Moving reference system, Splash lubrication, Vibrational excitation, Gearbox


Yi LIU, Kailin ZHANG, Shuai SHAO, Hongxu XIANG, Zhijian YE. Influence of vibration on the lubrication effect of a splash-lubricated gearbox[J]. Journal of Zhejiang University Science A, 2024, 25(4): 324-339.

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volume="25",
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year="2024",
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doi="10.1631/jzus.A2300436"
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%T Influence of vibration on the lubrication effect of a splash-lubricated gearbox
%A Yi LIU
%A Kailin ZHANG
%A Shuai SHAO
%A Hongxu XIANG
%A Zhijian YE
%J Journal of Zhejiang University SCIENCE A
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2300436

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T1 - Influence of vibration on the lubrication effect of a splash-lubricated gearbox
A1 - Yi LIU
A1 - Kailin ZHANG
A1 - Shuai SHAO
A1 - Hongxu XIANG
A1 - Zhijian YE
J0 - Journal of Zhejiang University Science A
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A2300436


Abstract: 
In this study, we investigate the effect of rail vibrations on the lubrication and efficiency of a splash-lubricated gearbox; specifically, the gearbox of a rail-transit vehicle. A high-fidelity 3D numerical model of the gearbox in a moving reference system is described, as well as computational fluid dynamics (CFD) simulations of the gearbox with different vibration directions. The effects of rotational speed, oil-immersion depth, and different oil-injection volume rates on lubrication and efficiency are discussed. We propose a method of evaluating the internal lubrication condition of a splash-lubricated gearbox and quantitatively compare the effects of different operating parameters on lubrication and efficiency. Finally, our experiment to verify the feasibility of the simulation method is described. The results show that with vibration, the churning loss and oil supply for the bearings are significantly higher than those under static conditions. In addition, among different vibrational directions, lateral vibration has the greatest influence on the lubrication condition and efficiency of the gearbox. For the studied railway-vehicle gearbox, the best lubrication condition is achieved at a rotational speed of 1600 r/min and an oil-immersion depth of two times the tooth height (2.0h). Rotational speed is the operating parameter that has the most significant effect on the lubrication and efficiency of the gearbox.

振動激勵對飛濺潤滑齒輪箱中(zhōng)潤滑效果的影響

作者:劉逸,張開(kāi)林,邵帥,向泓旭,葉志(zhì)堅
機構:西南(nán)交通大(dà)學,軌道交通運載系統全國重點實驗室,中(zhōng)國成都,610031
目的:以軌道交通車(chē)輛齒輪箱爲研究對象,本文旨在研究軌道振動激勵對飛濺潤滑齒輪箱的潤滑和效率的影響。
創新點:1.研究振動對齒輪箱内潤滑與效率的影響;2.提出潤滑評價指标,綜合評估潤滑情況;3.實測軌道激勵。
方法:1.建立在動參考系中(zhōng)的齒輪箱高保真三維數值模型,并對不同振動方向下(xià)的齒輪箱進行計算流體(tǐ)力學仿真;2.讨論轉速、浸油深度和不同噴油體(tǐ)積速率對潤滑和效率的影響;3.提出一(yī)種對飛濺潤滑齒輪箱内部潤滑狀況的評價方法,并量化地比較不同運行參數對潤滑與效率的影響;4.通過實驗驗證該仿真方法的可行性。
結論:1.振動狀态下(xià),齒輪箱攪油損失和軸承供油量與靜态下(xià)相比顯著增大(dà);2.在不同方向的振動中(zhōng),橫向振動載荷對齒輪箱潤滑狀況與效率的影響最大(dà);3.對于所研究的軌道交通車(chē)輛齒輪箱,轉速爲1600 r/min、浸油深度爲2倍齒高時潤滑狀态最佳;4.在各運行參數中(zhōng),轉速對齒輪箱的潤滑與效率影響最爲顯著。

關鍵詞:綜合潤滑評價;攪油損失;動參考系;飛濺潤滑;振動激勵

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