STUDY ON THE CHARACTERISTICS OF MICRO-PITTING DAMAGES FOR HIGH POWER DENSITY GEAR TRANSMISSION

LI JiQiang; LIU ZhongMing; WANG DongFei; LI YouHua; ZHANG YanKun

doi:10.16579/j.issn.1001.9669.2020.06.018

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STUDY ON THE CHARACTERISTICS OF MICRO-PITTING DAMAGES FOR HIGH POWER DENSITY GEAR TRANSMISSION

更新时间：2022-09-22

- STUDY ON THE CHARACTERISTICS OF MICRO-PITTING DAMAGES FOR HIGH POWER DENSITY GEAR TRANSMISSION
- Journal of Mechanical Strength Vol. 42, Issue 6, Pages: 1396-1402(2020)
- 作者机构：
  
  1. 郑州机械研究所有限公司研发中心
  2. 宝鸡石油机械有限责任公司泵业分公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2020.06.018
  CLC：
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LI JiQiang, LIU ZhongMing, WANG DongFei, et al. STUDY ON THE CHARACTERISTICS OF MICRO-PITTING DAMAGES FOR HIGH POWER DENSITY GEAR TRANSMISSION. [J]. 42(6):1396-1402(2020)
DOI：

LI JiQiang, LIU ZhongMing, WANG DongFei, et al. STUDY ON THE CHARACTERISTICS OF MICRO-PITTING DAMAGES FOR HIGH POWER DENSITY GEAR TRANSMISSION. [J]. 42(6):1396-1402(2020) DOI： 10.16579/j.issn.1001.9669.2020.06.018.

摘要

阐述了微点蚀形成机理,分析了各影响因素的作用关系,揭示了局部接触应力、润滑油膜厚比和材料微观力学特性三大作用机制;基于牛顿流体弹流润滑理论和试验研究,确定了润滑油膜厚度合理的计算方法;通过对比计算,分析了油液黏度、润滑油温、传递扭矩、齿轮转速对油膜厚度的具体影响,并进一步结合齿轮传动微点蚀设计,给出了润滑改进与优化的可行思路和可操方法;最终,通过试验设计,不但验证了理论分析的正确性,也形成了齿轮18CrNiMo7-6材料+ISO-VG220润滑油组合抗微点蚀设计可用的基础数据。

Abstract

the formation mechanism of micro-pitting had been described in this paper,the action relationships of various influencing factors had also been analyzed,and the three main action mechanisms of local contact stress,film thickness ratio of lubricating oil and micro mechanical properties for materials had been regularized.Based on elastohydrodynamic lubrication theory and previous test results for Newtonian fluids,the reasonable calculation method of film thickness for lubricating oils had been determined.Through comparative calculations,the specific effects of oil types,lubricating oil temperatures,transmission torques and gear speeds on the oil film thickness had been analyzed.Combined with the micro-pitting design of gear transmission,feasible ideas and operational methods for lubrication improvements and optimizations had also been given.Finally,through the experimental designs,the correctness of the theoretical analysis had been verified,and the basic data for the anti micro-pitting design of the combination for gears of 18 CrNiMo7-6（material）+ISO-VG220（Lubricating oil） had been goted.

关键词

齿轮传动微点蚀损伤机理疲劳分析润滑设计

Keywords

Gear transmissionMicro-pittingDamage mechanismFatigue analysisLubrication design

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