多工况下润滑脂弹流摩擦特性演变规律与稳定性的研究
Journal: Engineering Technology Development DOI: 10.12238/etd.v6i7.18247
Abstract
润滑脂在滚动轴承中的摩擦特性直接影响设备能耗与寿命,然而其润滑机理及工况适应性仍缺乏系统性研究。本研究借助MTM2微牵引力试验机,系统测试了三种商用润滑脂在不同赫兹接触应力与环境温度条件下的弹流摩擦系数,并结合红外光谱数据,探究不同工况下润滑脂的摩擦行为演变规律。研究发现,三种润滑脂摩擦系数均随滑滚比增加而增加且摩擦系数随滑滚比增大呈先快后慢的增长趋势；卷吸速度变化时,2#脂摩擦稳定性能最佳,3 #脂次之,1#脂最差；载荷变化时,3#脂摩擦性能最好,1#脂次之,2#脂最差；温度变化时,1#脂摩擦稳定性能最好,3#脂次之,2#脂最差。同时,红外光谱分析表明高温下润滑脂成分未变,仅含量降低。本研究为不同工况下选择合适润滑脂提供了数据支持与理论依据。
Keywords
润滑脂；弹流摩擦特性；MTM2微牵引力试验机；红外光谱仪；摩擦稳定性
Funding
泰山产业领军人才工程资助(tscx202312171)。
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