Study on the Effect of Water Pollution in Lubricant on Gear Thermal Elastohydrodynamic Lubrication Characteristic

Yan Chen; Xian Zhang; Guosheng Li

doi:10.16578/j.issn.1004.2539.2021.12.004

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Study on the Effect of Water Pollution in Lubricant on Gear Thermal Elastohydrodynamic Lubrication Characteristic

Theory·Reserach | 更新时间：2022-09-15

- Study on the Effect of Water Pollution in Lubricant on Gear Thermal Elastohydrodynamic Lubrication Characteristic
- Journal of Mechanical Transmission Vol. 45, Issue 12, Pages: 22-27(2021)
- 作者机构：
  
  1.江苏联合职业技术学院无锡交通分院，江苏无锡 214151
  2.黑龙江农业工程职业学院机电学院，黑龙江哈尔滨 150088
  3.哈尔滨工业大学机械工程学院，黑龙江哈尔滨 150001
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2021.12.004
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陈妍,张弦,李国胜.润滑油水污染对齿轮热弹流润滑特性的影响研究[J].机械传动,2021,45(12):22-27.

Chen Yan,Zhang Xian,Li Guosheng.Study on the Effect of Water Pollution in Lubricant on Gear Thermal Elastohydrodynamic Lubrication Characteristic[J].Journal of Mechanical Transmission,2021,45(12):22-27.
陈妍,张弦,李国胜.润滑油水污染对齿轮热弹流润滑特性的影响研究[J].机械传动,2021,45(12):22-27. DOI： 10.16578/j.issn.1004.2539.2021.12.004.

Chen Yan,Zhang Xian,Li Guosheng.Study on the Effect of Water Pollution in Lubricant on Gear Thermal Elastohydrodynamic Lubrication Characteristic[J].Journal of Mechanical Transmission,2021,45(12):22-27. DOI： 10.16578/j.issn.1004.2539.2021.12.004.

摘要

以渐开线直齿圆柱齿轮为研究对象，考虑热效应和时变效应，建立油水两相流模型和齿轮的热弹流润滑模型，探究了润滑油中含水率对油水两相流体的黏度及齿面润滑特性的影响。研究结果表明，润滑油中混入冷却水后，当含水率不超过5%时，随着含水率的增加，油水两相流体的黏度不断增大；含水率为5%时，油水两相流体的黏度达到其峰值，之后随着含水率的增加，油水两相流体的黏度不断减小。适当增加含水率可改善齿面的润滑特性，但考虑油膜温升及对设备的腐蚀磨损，应将含水率控制在5%以内。

Abstract

Taking the involute spur gear as the research object and considering the thermal effect and time-varying effect，the oil-water two-phase flow model and the thermal elastohydrodynamic lubrication model of the gear system are established，the influence of water content on the viscosity of the lubricants and the lubrication performance of the tooth surface are explored. The results show that when the water content in lubricating oil is less than 5%，the viscosity of oil-water two-phase fluid increased with the increment of water content. When the water content is 5%，the viscosity of oil-water two-phase fluid reached its peak value，and then decreased with the increment of water content. Appropriate increase of water content can improve the lubrication characteristics of tooth surface，but considering oil film temperature rise and corrosion wear of equipment，the water content should be controlled within 5%.

关键词

油水两相流含水率热效应时变效应润滑特性

Keywords

Oil-water two-phase flowWater contentThermal effectTime-varying effectLubrication characteristic

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