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首页> 外文期刊>Journal of Cleaner Production >Lean lubrication of ultra large modulus open gear and rack pair: A case study of the gear-rack drive mechanism of the Chinese 'Three Gorge Dam' ship lift
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Lean lubrication of ultra large modulus open gear and rack pair: A case study of the gear-rack drive mechanism of the Chinese 'Three Gorge Dam' ship lift

机译：超大模量开放式齿轮和架子对的瘦润滑：用“三峡谷”船舶升降机齿轮架驱动机构的案例研究

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摘要

Large modulus gear-rack mechanism has strong bearing capacity. They are often used in heavy-duty equipment, i.e. for heavy load lifting. This study is focused on the ultra large modulus heavy duty open gear-rack drive mechanism of the Chinese "Three Gorge Dam" ship lift, of which lubrication design and management plays a critical role in safe operation and service life extension of the mechanism. Against the currently adopted manual oiling which raises concerns from ineffective lubrication, high lubricate wastes as well as risks of maintainers, this study aims to propose lean lubrication design method based on parametric modeling and numerical analysis. A three-dimensional linear contact hybrid elastohydrodynamic lubrication model was established to characterize lubrication behavior under effects of contact area size and morphology. With the EHL model, lean oil supply conditions were exploited based on effective lubricating oil thickness. Given the uncertainty and complexity of lubrication state in actual working conditions, texture design was then proposed for better tribological performance under starved lubrication conditions. The proposed models and methods were applied to the gear-rack drive of the Chinese "Three Gorge Dam" ship lift. The numerical results suggested the proposed lean lubrication plan may consume 4.13% less lubricating oil in one mesh cycle than that calculated by conventional methods. The reduction of lubricating oil consumption can be larger if the high waste from oil oversupply by manual oiling is considered. The output of case study may serve as the basis of further development of lean lubrication system for the gear-rack drive mechanism. (C) 2020 Elsevier Ltd. All rights reserved.
机译：大型模量齿轮架机构具有很强的承载力。它们通常用于重型设备，即重型负荷提升。本研究专注于中国“三峡大坝”船舶升降机的超大型模量重型齿轮架驱动机构，其中润滑设计和管理在安全运行和使用寿命延伸方面发挥着关键作用。针对目前采用的手动换油，旨在从无效的润滑，高润滑废物以及维护者的风险中提出担忧，该研究旨在提出基于参数化建模和数值分析的瘦润滑设计方法。建立了三维线性接触杂交弹性动力学润滑模型，以表征接触面积大小和形态的影响下的润滑行为。利用EHL模型，基于有效的润滑油厚度利用贫油供应条件。鉴于在实际工作条件下润滑状态的不确定性和复杂性，提出了污染润滑条件下更好的摩擦学性能的纹理设计。所提出的模型和方法应用于中国“三峡坝”船舶升降机的齿轮机驱动器。数值结果表明，所提出的贫润滑计划可以在一种网眼周期中消耗4.13％的润滑油，而不是通过常规方法计算的润滑油。如果考虑通过手动换油供过于求的高废物，则润滑油消耗的减少可以更大。案例研究的输出可以作为用于齿轮架驱动机构的贫润滑系统进一步发展的基础。 （c）2020 elestvier有限公司保留所有权利。

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