润滑介质对摩擦性能影响差异分析

发布时间：2018-05-21 17:27

本文选题：润滑油 + 复合锂基润滑脂　；参考：《润滑与密封》2017年07期

【摘要】：L-CKD150润滑油和复合锂基润滑脂广泛运用于石油装备润滑减磨。为研究2种润滑介质对摩擦副摩擦磨损性能及磨损机制的影响差异,采用MMW-1型微机控制立式万能摩擦磨损试验机,开展不同接触压力和线速度及不同润滑环境下摩擦学实验研究。结果表明:实验工况下,销-盘摩擦副表面以磨粒磨损为主,同时存在黏着磨损;相比于L-CKD150润滑工况,复合锂基润滑脂润滑时销-盘表面黏着磨损更为严重,进而加大摩擦因数的波动幅度,最大波动幅度为L-CKD150润滑下的3.7倍;盘试样表面磨粒磨损与接触压力有关,0.5 MPa接触压力下,L-CKD150润滑时磨粒磨损较严重,1.5 MPa下则复合锂基润滑脂润滑时更严重,磨粒磨损是影响盘试样磨损量差异的主要因素。
[Abstract]:L-CKD150 lubricating oil and compound lithium grease are widely used in oil equipment lubrication and wear reduction. In order to study the influence of two kinds of lubricating media on friction and wear performance and wear mechanism of friction pair, MMW-1 microcomputer controlled vertical universal friction and wear tester was adopted. Tribological experiments under different contact pressure, linear velocity and lubricating environment were carried out. The results show that the surface of the pin-disk friction pair is mainly abrasive wear under the experimental condition, and there is adhesive wear at the same time, compared with the L-CKD150 lubricating condition, the pin-disc surface adhesion wear is more serious when the composite lithium grease is lubricated. Then the fluctuation range of friction coefficient is increased, the maximum fluctuation range is 3. 7 times as much as that under L-CKD150 lubrication. The abrasive wear on the surface of disk specimen is related to the contact pressure. The abrasive wear of L-CKD150 lubricated is more serious than that of compound lithium grease lubricated at 0. 5 MPa contact pressure. Abrasive wear is the main factor that affects the wear quantity of disc specimen.
【作者单位】：西南石油大学机电工程学院;
【基金】：国家自然科学基金项目(51505397)
【分类号】：TH117

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