斜盘式轴向柱塞泵配流副油膜特性分析

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振动与冲击 ›› 2025, Vol. 44 ›› Issue (11) : 92-100.

振动理论与交叉研究

斜盘式轴向柱塞泵配流副油膜特性分析

岳星岐1，王慧*2，赵国超2，周国强2，宋宇宁3

作者信息 +

Analysis of oil film characteristics of port plate pair of swash plate axial piston pumps

YUE Xingqi1, WANG Hui*2, ZHAO Guochao2, ZHOU Guoqiang2, SONG Yuning3

Author information +

文章历史 +

摘要

为探究斜盘式轴向柱塞泵振动的发生机理，建立了斜盘式柱塞泵配流副油膜有限元模型，通过试验验证了模型具有高度的准确性，并采用等间距试验法分析了排油口负载压力、缸体转速和斜盘倾角等工况参数对配流副油膜的压力场特性、温度场特性、正压力特性和空化特性的影响规律。研究结果表明：柱塞在吸油区与排油区相互转换阶段，随着排油口负载压力、缸体转速和斜盘倾角等工况参数增大，配流副油膜的局部高压和高温区域面积均增大，油膜正压力增大，油膜空化程度增大，油膜气相体积分数峰值分别由5.61%增至6.32%、2.24%增至3.94%、5.61%增至6.37%，均会加剧斜盘式轴向柱塞泵的振动现象；随着吸油口压力的增大，油膜空化程度降低，油膜气相体积分数峰值由2.99%降低至1.51%，在实际设计柱塞泵时各工况参数的取值存在最优区间。

Abstract

To investigate the vibration mechanism of the swash plate axial piston pump, a finite element model of the piston pump distributor oil film iwas established, and the model is was verified to be highly accurate through by the test. The influence of working condition parameters such as load pressure at the discharge port, cylinder rotational speed, and swash plate inclination angle on the pressure, temperature, positive pressure, and cavitation characteristics of the distributor oil film is was analyzed by using the equidistant test method. The results show that: with the increase of load pressure at the discharge port, cylinder rotational speed, and swashplate inclination angle, thearea of the local high-pressure and high-temperature areas of the flow-distributing sub-film increases, the positive pressure of the film increases, the degree of cavitation increases, and the peak gas-phase volume fraction of the oil film increases from 5.61% to 6.32% and from 2.24% to 3.94%, respectively, at the stage of the transition between suction area and discharge area, 5.61% to 6.37%, respectively, all of which will exacerbate the vibration phenomenon of swash plate axial piston pumps; With the increase of suction port pressure, the degree of oil film cavitation decreases, and the peak oil film gas-phase volume fraction decreases from 2.99% to 1.51%, and there is an optimal interval for the values of each operating condition parameter in the actual design of the piston pump.

导出引用

岳星岐1, 王慧2, 赵国超2, 周国强2, 宋宇宁3. 斜盘式轴向柱塞泵配流副油膜特性分析[J]. 振动与冲击, 2025, 44(11): 92-100

YUE Xingqi1, WANG Hui2, ZHAO Guochao2, ZHOU Guoqiang2, SONG Yuning3. Analysis of oil film characteristics of port plate pair of swash plate axial piston pumps[J]. Journal of Vibration and Shock, 2025, 44(11): 92-100

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